JP2568931Y2 - Radiation cassette - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation cassette, and more particularly, to a structure of a frame provided on an outer periphery of a front plate of the radiation cassette.

[0002]

2. Description of the Related Art A radiation cassette is formed by hingedly opening and closing a front plate and a cover plate, and by closing both plates, a film stored in the front plate is attached to the cover plate. It is pressed against the inner surface of the front plate by the provided film holder.
Due to the nature of such a cassette for radiation, a high dimensional accuracy and a light shielding property when the lid plate is closed are required in view of the use state and various radiation devices.

For this reason, the applicant of the present invention has previously proposed a radiation cassette having a structure in which a corner member and a straight member are connected to form a frame.

[0004]

The radiation cassette having the above structure has the advantage that the strength and dimensional accuracy can be improved as compared with the conventional one. However, in order to achieve complete automation of assembly, the accuracy of the radiation cassette is high. High assembly equipment was required. .

It is an object of the present invention to further improve the above frame structure and to provide a radiation cassette which can be easily assembled.

[0006]

In order to achieve the above object, a radiation cassette of the present invention has a substantially rectangular top plate for storing a film, and a lid hinged to a frame on the outer periphery of the top plate. In the radiation cassette having a plate, the frame, the corner member corresponding to the corner portion of the top plate, a straight member corresponding to the side portion of the top plate, and a connection member for connecting the corner member and the straight member. The connecting member has a width close to the height dimension of the frame, provided at both ends in the length direction, an insertion taper portion having a thin end formed at the end, the corner member and the straight member, A connecting member insertion portion corresponding to each connecting member is provided, and the corner member is provided with a protruding side for covering a joint portion with the straight member.

[0007]

According to the above construction, the corner member and the straight member can be easily connected by the insertion taper portions provided at both ends of the connecting member. In addition, by making the width of the connecting member close to the height of the frame and providing the corner member with a protruding edge that covers the joint with the straight member, the light shielding property of the joint can be enhanced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a main part of a frame, FIG. 2 is a perspective view of a radiation cassette, FIG. 3 is a sectional view of a corner member, and FIG. 4 is a sectional view of a straight member.

As shown in FIG. 2, a radiation cassette 1 is provided.
The cover plate 4 is openably and closably mounted on a frame 3 which forms the outer periphery of the front plate 2. A film holding member 5 to be attached is provided, and a hinge 6 is provided on one side.
On the other side, a lock member 7 and a handle 8 are provided.

The frame 3 includes a corner member 10 made of synthetic resin corresponding to each corner of the top plate 2, a straight member 20 made of metal corresponding to a side portion of the top plate 2, and both members 10, 20. It is formed by a metal connecting member 30 to be connected.

As shown in FIGS. 1 and 3, the corner member 10 has a connection member insertion hole 12 having a predetermined depth for inserting the connection member 30 at each end of a substantially L-shaped main body portion 11.
Are formed in the inner peripheral portion thereof, and the outer peripheral edge 41 of the cover plate 4 is provided on the inner peripheral portion thereof with the front plate mounting groove 13 into which the peripheral edge portion of the front plate 2 is inserted.
A groove 15 is formed at the opposite end of the groove 14. The protrusion 15 projects toward the straight member 20 at both ends.

As shown in FIGS. 1 and 4, the straight member 20 is formed by cutting an extruded aluminum member into a predetermined length, and extends over the entire length of the connecting member 3.
0 is formed, and a connecting member insertion groove 21 into which 0 is inserted is formed.
On the inner peripheral side, a front plate mounting groove 22 and a concave groove 23 similar to those of the corner member 10 are formed.

A groove 23 of the straight member 20;
The projecting side 15 of the corner member 10 is defined as both members 10 and 2
0, the protruding side 15 enters the groove 23,
The inner surface of the concave groove portion 23 and the outer surface of the protruding side 15 are slidably contacted with each other so as to cover the joint between the two members 10 and 20.

The connecting member 30 is formed of the corner member 1
0 and a width dimension close to the height dimension of the straight member 20, and approximately half in the length direction are inserted into the connecting member insertion portions of the corner member 10 and the straight member 20, respectively, and are rectangular substrates. A bar-shaped portion 32 is provided on both sides of the portion 31. Both ends of the connecting member 30 are formed to have a small thickness or a small diameter in the insertion direction, and an insertion taper for improving workability when the connecting member 30 is inserted into the corner member 10 and the straight member 20. The part 33 is formed.

The corner member 10, the straight member 20 and the connecting member 30 are usually
Is inserted into the connection member insertion hole 12 of the corner member 10, and then the connection member 30 projecting from the corner member 10 is inserted into the connection member insertion groove 21 of the straight member 20.

The connecting work between the corner member 10 with the connecting member 30 mounted thereon and the straight member 20 is performed while inserting the periphery of the front plate 2 into the front plate mounting grooves 13 and 22 to connect each member. The frame 3 and the top plate 2 are
Of the front member 2 and the straight member 20 are crimped by press working, or an adhesive is applied to the periphery of the front plate 2 to be assembled.

At this time, since the insertion tapered portions 33 are formed at both ends of the connecting member 30 as described above, the operation of inserting the connecting member 30 when assembling each member becomes extremely easy. The width dimension of the member 30 is made close to the height dimension of the frame 3 and the corner member 10 is provided with a protruding edge 15 projecting toward the straight member 20 to cover the joint thereof.
Provided, the corner member 10 and the straight member 20
Between the connecting member 30 and the protrusion 1
5, so that the light-tightness of the joint can be achieved. Therefore, it is sufficient that the protruding edge 15 is provided only in a portion where light shielding properties are required, and in a portion which cannot be shielded by other members.

Further, since the width of the connecting member 30 is large, the strength of the connecting portion is sufficient, and the bending and twisting hardly occur. Further, as shown in the present embodiment, the bar-shaped portion 32 of the connecting member 30 on the straight member 20 side is used.
By protruding from the substrate portion 31, this portion serves as a guide, so that the insertion workability can be further improved.

[0019]

[Effects of the Invention] As described above, in the radiation cassette of the present invention, the frame on the outer periphery of the top plate is made up of the corner member corresponding to the corner portion of the top plate and the straight member corresponding to the side portion of the top plate. A connecting member for connecting the corner member and the straight member, wherein the connecting member has a width close to the height of the frame, and at both ends in the length direction thereof,
An insertion taper portion having a thin end is provided, and the corner member and the straight member are each provided with a connection member insertion portion corresponding to the connection member, and the corner member covers a joint portion with the straight member. Since the protruding side is provided, the assembling can be performed more easily than before, and the light shielding property and the strength can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a frame showing one embodiment of the present invention.

FIG. 2 is a perspective view of a radiation cassette;

FIG. 3 is a sectional view of a corner member.

FIG. 4 is a sectional view of a straight member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Radiation cassette 2 ... Top plate 3 ... Frame
DESCRIPTION OF SYMBOLS 4 ... Cover plate 10 ... Corner member 11 ... Body part 12 ... Connecting member insertion hole 15 ... Protrusion 20 ... Straight member 21 ... Connecting member insertion groove 30 ... Connecting member 31 ... Board part 32 ... Bar-shaped part
33 ... Tapered part for insertion

Claims (1)

(57) [Scope of request for utility model registration] 1. A substantially rectangular top plate for storing a film,
In a radiation cassette having a lid plate hinged to a frame on the outer periphery of the top plate, the frame includes a corner member corresponding to a corner portion of the top plate, and a straight member corresponding to a side portion of the top plate, The corner member and a connecting member that connects the straight member and the connecting member, the connecting member,
It has a width close to the height dimension of the frame, and at both ends in the length direction, an insertion taper portion having a thin end is provided. And a corner portion provided with a protruding side for covering a joint portion with the straight member.